$\frac{2}{3!} + \frac{4}{5!} + \frac{6}{7!} + \dots \infty = $

  • A
    $e$
  • B
    $2e$
  • C
    $e^2$
  • D
    $1/e$

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Similar Questions

$\frac{e^{4x} - 1}{e^{2x}}$ ના વિસ્તરણમાં,$x^2$ નો સહગુણક શું છે?

ધારો કે $\sum_{n=0}^{\infty} \frac{n^3((2n)!) + (2n-1)(n!)}{(n!)((2n)!)} = ae + \frac{b}{e} + c$,જ્યાં $a, b, c \in \mathbb{Z}$ અને $e = \sum_{n=0}^{\infty} \frac{1}{n!}$. તો $a^2 - b + c$ ની કિંમત $................$ છે.

જો ${T_n} = \frac{{{3^n}}}{{2(n!)}} - \frac{1}{{2(n!)}}$ હોય,તો ${S_\infty } = $

$1 + \frac{a - b}{a} + \frac{1}{2!} \left( \frac{a - b}{a} \right)^2 + \frac{1}{3!} \left( \frac{a - b}{a} \right)^3 + \dots \infty = $

શ્રેણી $\frac{4}{1!} + \frac{11}{2!} + \frac{22}{3!} + \frac{37}{4!} + \frac{56}{5!} + \dots$ નો સરવાળો શોધો.

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